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ZPW 型阀位控制器系气动执行机构的附属装置,它与各类调节阀配套使用,用以显示阀门上限、下限的行程工作位置。若与自动调节系统或事故报警系统配合使用,可实现该类系统中的阀门相互联锁。由上海自动化仪表七厂主持的阀位控制
ZPW-type valve positioner is a pneumatic actuator attachment, it is used with various types of control valve used to display the valve upper and lower limit of the working position. If used in conjunction with the automatic adjustment system or the accident alarm system, the valves in such systems can be interlocked with each other. Shanghai Automation Instrumentation Factory presided over by the seven valve position control